How to append new line to the end of each line As the operation will be performed on a specific text file; so, you must create a text file and add some text to it, or you can apply sed on any existing text file too (make sure that the file does not contain any important informat...
要删除第 3 到最后一行 在第二行后(亦即是加在第三行)加上『new add line by chenle!!!』字样! 那如果是要在第二行前: 如果是要增加两行以上,在第二行后面加入两行字,例如『add new line01 by chenl』与『add new line01 by chenl』 每一行之间都必须要以反斜杠『 \ 』来进行新行的添加喔!所...
用sed 给文本文件加行号 看例子: [root@localhost tmp]#sed'='test.txt1tsttst tsttsttst2west gao3west abces [root@localhost tmp]#sed= test.txt |sed'N;s/\n/\t/'1tsttst tsttsttst2west gao3west abces [root@localhost tmp]# N的解释: N:Add a newline to the pattern space, then app...
AI检测代码解析 [root@magedu ~]# sed '/^#/a \add new_line' /etc/fstab //#开头的后一行加入add.. [root@magedu ~]# sed '/^#/i \add new_line' /etc/fstab //#开头的前一行加入add.. 1. c \text:把匹配到的行替换为此处指定的文本“text”; AI检测代码解析 [root@magedu ~]# sed '...
[root@localhost tmp]#sed= test.txt |sed'N;s/\n/\t/'1tsttst tsttsttst2west gao3west abces [root@localhost tmp]# 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. N的解释: N:Add a newline to the pattern space, then append the next line of input to the pattern space. If...
]# sed '3a \new line' /etc/fstab:在第三行下面插入一行newline; ]# sed '3a \new line\nanother new line'/etc/fstab:在第三行下面插入2行; ]# sed '/^UUID/a \# add new device base onUUID' /etc/fstab:在UUID开头的行下面添加一行# add new device base on UUID; ...
$ sed '1a \add one' test.txtthis is first lineadd onethis is second linethis is third linethis is fourth linethis is fifth linehappy everydayend 本例命令部分中的1表示第一行,同样的第二行写成2,第一行到第三行写成1,3,用$表示最后一行,比如2,$表示第二行到最后一行中间所有的行(包含第二...
例如 1,20s/old/new/g 定址 定址用于决定对哪些行进行编辑。地址的形式可以是数字、正则表达式、或二者的结合。如果没有指定地址，sed将处理输入文件的所有行。地址是一个数字，则表示行号；是“$"符号，则表示最后一行。例如： sed -n '3p' datafile只打印第三行 只显示指定行范围的文件内容...
sed '[address]command\ new line' sed '1,3a\begin' fstatt.cpp //在1~3行后append begin。 (5)改变整行的内容 sed '3c\begin' fstatt.cpp //把第3行替换成begin (6)输出行 sed -n '/pattern/p' data6 sed -n '1,3p' test sed -n '1,3!p' test //输出非1~3行的数据 ...
This is line 1. This is line 2. This is line 3. Use sed with a Command 1 2 3 sed -i '$a\This is the last line' myFile.txt In this example, the sed command is used with the a option to add a line This is the last Line to the end of the file myFile.txt. In Bash...